Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 157, NWS Twin Cities, MN

August 6, 1996Brown County, Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 6, 1996, 9:26 PM CDT for Brown County, Renville County, Minnesota. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 6, 1996, 9:26 PM CDT (02:26 UTC)
Expired
Aug 6, 1996, 10:00 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Brown County, MN, Renville County, MN

The radar

The Minneapolis radar (KMPX), 108 km from the middle of the area, began a volume at 02:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.4 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1996-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4613 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4613 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 070229
SVRMSP
MNC015-129-070315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
926 PM CDT TUE AUG 6 1996

* SEVERE THUNDERSTORM WARNING FOR
  NORTHERN BROWN COUNTY - SOUTH CENTRAL MINNESOTA
  EASTERN RENVILLE COUNTY - SOUTH CENTRAL MINNESOTA

* UNTIL 1000 PM CDT
 
* SOME LOCATIONS AFFECTED
    BIRD ISLAND
    FAIRFAX
    EVAN

* AT AT 925 PM CDT DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM
  FROM JUST EAST OF REDWOOD FALLS TO EAST OF OLIVIA OR ABOUT 30 TO
  4O MILES SOUTH OF WILLMAR MOVING EAST AT 35 MPH.

GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! A TORNADO
WATCH IS IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCEd TORNADOES.

MILLER

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 7:59 PM CDTSevere Thunderstorm WarningMPXChippewa61 min
Aug 6, 8:03 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi57 min
Aug 6, 8:49 PM CDTSevere Thunderstorm WarningMPXRedwood, Yellow Medicine46 min
Aug 6, 8:55 PM CDTTornado WarningMPXPope30 min
Aug 6, 9:02 PM CDTTornado WarningMPXMeeker43 min
Aug 6, 9:47 PM CDTSevere Thunderstorm WarningMPXMcLeod, Wright48 min
Aug 6, 9:59 PM CDTSevere Thunderstorm WarningMPXCarver, Sibley46 min
Aug 6, 10:18 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Martin, Watonwan42 min
Aug 6, 10:18 PM CDTSevere Thunderstorm WarningMPXNicollet42 min
Aug 6, 10:24 PM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Scott, Sherburne66 min
Aug 6, 10:24 PM CDTSevere Thunderstorm WarningMPXWashington66 min
Aug 6, 10:57 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Waseca63 min
Aug 6, 10:57 PM CDTSevere Thunderstorm WarningMPXRice63 min
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXGoodhue55 min
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti55 min
Aug 6, 11:32 PM CDTSevere Thunderstorm WarningMPXDakota33 min
Aug 7, 12:12 AM CDTSevere Thunderstorm WarningMPXFreeborn, Steele33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.